Stihl MS 441 Manual page 52

– Coat cylindrical crankshaft stub
with oil.
– Line crankcase half up with the
cylindrical stub and the two
screws (arrows).
Wear protective gloves to prevent
injury due to burns.
– Heat inner race of ball bearing to
approx. 150 °C (300 °F).
: Press crankcase half fully home.
The crankcase half must be fitted
quickly, as the heat is transferred to
the stub and the inner race
contracts again.
: Ensure that the sleeves (arrows)
enter the holes and that the
housing gasket is not jammed or
buckled.
MS 441, MS 441 C
If it is not possible to heat the inner
race, the crankcase half is drawn in
with assembly tool 5910 890 2205.
– Coat cylindrical crankshaft stub
with oil.
– Line crankcase half up with the
cylindrical stub and the two
screws (arrows).
1
– Turn spindle of assembly tool
5910 890 2205 fully into the
assembly tool (left-hand thread).
: Screw threaded sleeve (1)
5910 893 2409 on assembly tool
5910 890 2205 fully home on the
spindle (left-hand thread).
– Fit threaded sleeve on crankshaft
stub and push assembly tool over
collar screws.
: Hold crankshaft steady and
screw threaded sleeve onto
thread of crankshaft stub by
turning the spindle
counterclockwise.
– Release crankshaft, but hold
assembly tool steady instead and
continue turning the spindle until
the assembly tool rests against
the crankcase half.
– Fit nuts for chain sprocket cover
on the collar screws and tighten
them down by hand.
: Turn spindle counterclockwise
until the crankcase half rests
against the guide sleeves.
51